Peter Sellers
Robert Danvers
Goldie Hawn
Marion
Tony Britton
Andrew Hunter
Nicky Henson
Jimmy
Diana Dors
John's Wife
Judy Campbell Exner
Lady Heather
Gabrielle Drake
Julia Halforde-Smythe
Nicola Pagett
Claire the Bride
Geraldine Sherman
Caroline
Thorley Walters
Manager of Carlton Hotel
Ruth Trouncer
Gilly Hunter
Françoise Pascal
Paola
Tom Marshall
Bryan
Raf De La Torre
Monsieur Le Guestier
Marianne Stone
Reporter
John Comer
John, the porter
Philippe Mareuil
Doublure voix française de Tony Britton
Constantine Gregory
Michel Le Guestier
Avril Angers
English Tourist in Lift
Georges Lambert
Floor Waiter
Margaret Lacey
Autograph Hunter at Wedding
Lewis Alexander
Wedding Guest (uncredited)
Jack Armstrong
Wedding Guest (uncredited)
Eric Barker
Wedding Guest (uncredited)
Ernest Blyth
Wedding Guest (uncredited)
Christopher Cazenove
Nigel (uncredited)
Andre Charisse
Concierge (uncredited)
Mark Dignam
Wedding Guest (uncredited)
Hugh Elton
Photographer (uncredited)
Mabel Etherington
Wedding Guest (uncredited)
Muriel Greenslade
Wedding Guest (uncredited)
Pearl Hackney
Wedding Guest (uncredited)
Victor Harrington
Wedding Guest (uncredited)
George Holdcroft
Wedding Guest (uncredited)
Gordon Humphries
Reporter (uncredited)
Juba Kennerley
Wedding Guest (uncredited)
Roy Lansford
Waiter (uncredited)
Aileen Lewis
Wedding Guest (uncredited)
Fred Machon
Sightseer at Wedding (uncredited)
Robin Parkinson
Reporter (uncredited)
James Payne
Reporter (uncredited)
Lance Percival
Willie the Bridegroom (uncredited)
Edith Raye
Wedding Guest (uncredited)
Bob Raymond
Hotel Porter (uncredited)
Terry Sartain
Reporter (uncredited)
Ian Selby
Wine Taster (uncredited)
John Serret
Elevator Operator (uncredited)
Caroline Seymour
Nigel's Girl Friend (uncredited)
Tina Simmons
Guest (uncredited)
Roy Skelton
Reporter (uncredited)
Alecia St Leger
Wedding Guest (uncredited)
John Tatham
Wedding Guest (uncredited)
John Timberlake
Cellarman (uncredited)
Cy Town
Photographer (uncredited)
Colin Vancao
Cigar-Smoking Wedding Guest (uncredited)
Mickey Varey
Constable (uncredited)